Squid Doodle
"It's Squidward, silly!"

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Not to be confused with Seymour Scales.

Seymour is a paternal great-grandfather of Sheldon J. Plankton, the father-in-law of Grand Dad Plankton, the paternal grandfather of Gordon Plankton and Silas Plankton, the grandfather-in-law of Mama Plankton, and also the great-grandfather-in-law of Karen Plankton. He appears in the comic A Plankton Family Tree.


He is an old plankton with four curled arms and legs, two buck teeth, and a pipe in his mouth.


At some point, he married Basia. Later, they were run out of their hometown for evil scheming and had to move to Bikini Bottom. Here, they had Alvin, Moe Bros and Lily.

Role in comic

He is a representation of Plankton's family tree.

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